The ACTA1 Knockout AGS Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population in which the ACTA1 gene has been disrupted in the AGS human gastric adenocarcinoma cell line. As a polyclonal pool, these cells retain the inherent genetic diversity of the edited population, providing a robust model for studying ACTA1 loss-of-function without selecting a single clonal isolate. This product is supplied as a heterogeneous population of knockout cells, suitable for a broad range of phenotypic and mechanistic investigations.
The parental AGS cell line is a widely used epithelial model isolated from a human gastric adenocarcinoma. These cells are characterized by unregulated proliferation, migration, and invasive potential, making them a standard platform for gastric cancer research. They are also extensively employed in H. pylori infection studies, as the bacterium induces profound cytoskeletal rearrangements in host epithelial cells. The AGS line thus offers a relevant tumorigenic background for examining the consequences of ACTA1 disruption on cancer cell behavior and host-pathogen interactions.
ACTA1 encodes alpha-skeletal muscle actin, a core component of sarcomeric thin filaments essential for muscle contraction and cytoskeletal integrity. In non-muscle cells, alpha-skeletal actin contributes to cytoplasmic actin networks, participating in filament polymerization, focal adhesion dynamics, and mechanotransduction. ACTA1 expression is regulated by MyoD, myogenin, SRF, and MEF2, and by TGF-beta, IGF-1, and mechanical stress. It interacts with tropomyosin, troponin, myosin II, alpha-actinin, nebulin, and focal adhesion proteins vinculin and talin. Rho GTPase pathways via ROCK and FAK converge on the actin cytoskeleton to govern adhesion and motility. ACTA1 disruption thus removes a central node in these networks.
In AGS cells, ACTA1 knockout enables study of actin isoform-specific roles in epithelial cancer. Loss of alpha-skeletal actin impairs cytoskeletal dynamics, altering adhesion, migration, and invasion??key metastatic processes. Additionally, since H. pylori triggers actin reorganization via CagA, these cells are valuable for dissecting bacterial manipulation of the host cytoskeleton and identifying ACTA1-dependent phenotypes.
These polyclonal knockout cells support migration and invasion assays, F-actin visualization with phalloidin, Western blotting, and RT-qPCR to validate ACTA1 loss and examine interacting proteins such as cofilin and myosin II. They can be used in co-immunoprecipitation, RNA-seq transcriptomics, and drug sensitivity screens targeting actin or chemotherapeutics. For detailed technical inquiries, contact Ascent Research.
